RelaunchHeadsUpPeriod

Allows you to set the time period, in milliseconds, between the first notification that a Google ChromeOS device must be restarted to apply a pending update and the end of the time period specified by the RelaunchNotificationPeriod policy. If not set, the default period of 259200000 milliseconds (three days) is used for Google ChromeOS devices. For rollback and other Google ChromeOS updates that will powerwash the device, the user is always notified immediately when the update is available, independently of the value of this policy.